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Retrieves the history for the specified alarm. You can filter the results by date range or item type. If an alarm name is not specified, the histories for either all metric alarms or all composite alarms are returned.
CloudWatch retains the history of an alarm even if you delete the alarm.
To use this operation and return information about a composite alarm, you must be
signed on with the cloudwatch:DescribeAlarmHistory permission that is scoped
to *. You can't return information about composite alarms if your cloudwatch:DescribeAlarmHistory
permission has a narrower scope.
This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginDescribeAlarmHistory and EndDescribeAlarmHistory.
Namespace: Amazon.CloudWatch
Assembly: AWSSDK.CloudWatch.dll
Version: 3.x.y.z
public abstract Task<DescribeAlarmHistoryResponse> DescribeAlarmHistoryAsync( CancellationToken cancellationToken )
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
| Exception | Condition |
|---|---|
| InvalidNextTokenException | The next token specified is invalid. |
.NET Core App:
Supported in: 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5